CVE-2023-36584: Microsoft Windows Mark of the Web (MOTW) Security Feature Bypass Vulnerability

Severity: medium (CVSS 5.4 v3.1)
Exploited in the wild: yes — in CISA KEV since 2023-11-16
EPSS: 3.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2023-10-10 · updated 2026-06-17

Description

Windows Mark of the Web Security Feature Bypass Vulnerability

Affected products

Microsoft Windows 10 Version 1507: before 10.0.10240.20232 — fixed in 10.0.10240.20232
Microsoft Windows 10: before 10.0.17763.4974 — fixed in 10.0.17763.4974
Microsoft Windows 10 21H1: before 10.0.19041.3570 — fixed in 10.0.19041.3570
Microsoft Windows 10: before 10.0.19041.3570 — fixed in 10.0.19041.3570
Microsoft Windows 11 21H2: before 10.0.22000.2538 — fixed in 10.0.22000.2538
Microsoft Windows 11: before 10.0.22621.2428 — fixed in 10.0.22621.2428
Microsoft Windows Server 2008: r2-sp1
Microsoft Windows Server 2012: r2
Microsoft Windows Server 2016: before 10.0.14393.6351 — fixed in 10.0.14393.6351
Microsoft Windows Server 2019: before 10.0.17763.4974 — fixed in 10.0.17763.4974
Microsoft Windows Server 2022: before 10.0.20348.2031 — fixed in 10.0.20348.2031

How to fix

Upgrade to a fixed version: Microsoft Windows 10 Version 1507 10.0.10240.20232; Microsoft Windows 10 10.0.17763.4974; Microsoft Windows 10 21H1 10.0.19041.3570; Microsoft Windows 10 10.0.19041.3570; Microsoft Windows 11 21H2 10.0.22000.2538; Microsoft Windows 11 10.0.22621.2428; Microsoft Windows Server 2016 10.0.14393.6351; Microsoft Windows Server 2019 10.0.17763.4974; Microsoft Windows Server 2022 10.0.20348.2031. Check the vendor advisory for mitigations.

References

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